Physics Semester Exam Review

A circuit contains a 12V battery and two resistors of 3Ω and 6Ω connected in series. What is the current through the circuit?

• 1A

• 2A

• 3A

• 4A

In a parallel circuit with a 24V battery and two resistors (6Ω and 3Ω), what is the potential difference across the 3Ω resistor?

• 6V

• 8V

• 12V

• 24V

What is the total resistance of a circuit with resistors of 6Ω, 3Ω, and 2Ω connected in parallel?

• 1.5Ω

• 2Ω

• 3Ω

What is the kinetic energy of an object with a mass of 5kg moving at a speed of 4 m/s?

• 40J

• 50J

• 80J

• 100J

Tags

NGSS.HS-PS3-1

A rock with a mass of 2kg is held 10m above the ground. What is the potential energy of the rock? (Use g = 9.8 m/s²)

Tags

NGSS.MS-PS3-2

When a rollercoaster goes down a hill, which energy transformation occurs?

• Kinetic energy to thermal energy

• Potential energy to kinetic energy

• Thermal energy to potential energy

• Kinetic energy to sound energy

Tags

NGSS.HS-PS3-3

According to the conservation of energy, what happens to the total energy in a closed system?

• It increases over time

• It decreases over time

• It remains constant

• It fluctuates

Tags

NGSS.HS-PS3-2

In an elastic collision, the total kinetic energy of the system:

• Increases

• Decreases

• Remains constant

• Becomes thermal energy

Tags

NGSS.HS-PS3-2

In an inelastic collision, the objects:

• Stick together after the collision

• Bounce off each other with the same velocity

• Have the same velocity after the collision

• Move in the same direction without any velocity change

Tags

NGSS.HS-PS2-2

NGSS.HS-PS2-3

In an isolated system with two objects colliding, what can be said about the total momentum?

• It is always conserved

• It is always lost

• It depends on the type of collision

• It increases during the collision

Tags

NGSS.HS-PS2-2